Interaction among Meloidogyne incognita, rhizoctonia bataticola and some saprophytic soil fungi on seedling emergence of mungbean*

Rhizoctonia bataticola was the only organism which affected seedling emergence, yet the presence of the nematode and other saprophagus fungus tended to modify this effect in a differential manner exhibiting neutral relationship wiit Penicillium chrysogenum and Trichoderma viride, slightly antagonistic with Meloidogyne incognita or synergistic interaction with Alternaria alternata. In addition, A. alternata wherever added tended to produce abnormal seedling having curly shoot, failure in emergence of plumule, or bloating of stem.